1 | /*
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2 | * 1WallSwitch_RS485.c
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3 | *
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4 | * Created: 27.02.2017 08:15:42
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5 | * Author : Mitch
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6 | */
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7 |
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8 | #include <avr/io.h>
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9 | #include <avr/sleep.h>
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10 | #include <avr/power.h>
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11 | #include <avr/wdt.h>
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12 | #include <avr/interrupt.h>
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13 | #include <stdint.h>
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14 | #include <string.h>
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15 | #include "EEPROM.h"
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16 |
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17 | #define F_CPU 8000000UL
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18 | #include <util/delay.h>
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19 |
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20 | #define DEVICE 1
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21 |
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22 | #define BAUDRATE 19200UL
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23 | #define USAR_BAUD_CALC 25 //8000000 / (16*19200)
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24 |
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25 | #define LOW(x) ((x) & 0xFF) //LOWBYTE
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26 | #define HIGH(x) (((x) >> 8) & 0xFF) //HIGHBYTE
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27 |
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28 | //RF24 radio(8,7);
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29 |
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30 | volatile uint8_t fourBtn = 0, initBtn =0;
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31 | volatile uint8_t WDT_count = 0;
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32 | volatile uint64_t Zeitstempel = 0;
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33 | volatile uint8_t id = 0;
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34 | volatile uint8_t timer_1s = 0;
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35 | volatile uint8_t timer_3s = 0;
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36 |
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37 | //Für Spannungsüberwachung
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38 | volatile uint8_t adc_low, adc_high; //Zwischenspeicher für die Ergebnisse des ADC
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39 | volatile uint64_t adc_result, vcc; //adc_result Gesamtergebnis der Messung des ADC //VCC Versorgungsspannung
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40 |
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41 | const uint64_t addresses[2] = {0xF0F0F0F002LL,0xE101000000LL};
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42 |
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43 | char *sendByte[20];
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44 | volatile char recByte[10];
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45 |
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46 | void rs485_putc(unsigned char c){
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47 | while (!(UCSR0A & (1<<UDRE0))) /* warten bis Senden moeglich */
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48 | {
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49 | }
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50 |
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51 | UDR0 = c; /* sende Zeichen */
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52 | //return 0;
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53 | }
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54 |
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55 | void rs485_puts(char *s, unsigned int len){
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56 | while (*s)
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57 | { /* so lange *s != '\0' also ungleich dem "String-Endezeichen(Terminator)" */
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58 | rs485_putc(*s);
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59 | s++;
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60 | //_delay_ms(200);
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61 | }
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62 | }
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63 |
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64 | void rs485_putAddr(uint8_t data){
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65 | UCSR0B |= (1<<TXB80);
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66 | // _delay_ms(10);
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67 | rs485_putc(data);
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68 | //rs485_putc('\n');
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69 | // _delay_ms(10);
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70 | UCSR0B &= ~(1<<TXB80);
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71 | }
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72 |
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73 | void config_timer(){
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74 | //16Bit Timer1
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75 | OCR1A = 31250;
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76 | TCCR1B = (1<<CS12) | (1<<WGM12);
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77 | TIMSK1 = (1<<OCIE1A);
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78 | }
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79 |
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80 | void config_interrupt(){
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81 | //PinChange Interrupt
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82 | PCMSK1 |= (1<<PCINT11)|(1<<PCINT10)|(1<<PCINT9)|(1<<PCINT8); //4 Taster PC0,PC1,PC2,PC3
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83 | PCICR |= (1<<PCIE1);
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84 |
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85 | //PinChange Interrupt PD4 (InitTaster)
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86 | PCMSK2 |= (1<<PCINT20);
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87 | PCICR |= (1<<PCIE2);
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88 | }
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89 |
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90 | void config_rs485(){
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91 | UBRR0H = HIGH(USAR_BAUD_CALC);
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92 | UBRR0L = LOW(USAR_BAUD_CALC);
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93 |
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94 | //Bei Slave mit Adresse
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95 | // UCSR0A = (1<<MPCM0); //Adressüberprüfung... dann 9Bit Modus
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96 |
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97 | //Character
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98 | UCSR0B = (1<<RXEN0) | (1<<TXEN0) | (1<<RXCIE0); //RX Enable, TX Enable, Empfangsinterrupts erlauben , UCSZ02 und UCSZ01 und 2aus UCSR0C = 9n1 ...(1<<RXCIE0)
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99 | UCSR0C = (1<<UCSZ00) | (1<<UCSZ01); //8n1
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100 | }
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101 |
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102 | ISR(PCINT1_vect){ //4Taster
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103 | fourBtn = 1;
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104 | }
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105 |
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106 | ISR(PCINT2_vect){ //InitTaster
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107 | initBtn = 1;
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108 | }
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109 |
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110 | ISR(TIMER1_COMPA_vect){
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111 | timer_1s = 1;
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112 | timer_3s++;
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113 | }
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114 |
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115 | int main(void){
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116 | DDRC |= (1<<DDC4)|(1<<DDC5); //PC4 & PC5 als Ausgang für LEDs(Tasterleds)
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117 | DDRD |= (1<<DDD2)|(1<<DDD3)|(1<<DDD5); //PD2 & PD3 als Ausgang für LEDs(Tasterleds), PD5 StatusLed
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118 | DDRB |= (1<<DDB2);//PB1 als Ausgang Ansteuerung für RS485
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119 |
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120 | config_timer();
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121 | config_interrupt();
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122 | config_rs485();
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123 | sei();
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124 |
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125 | //ADC abschalten, verbraucht dann noch weniger
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126 | ADCSRA = 0;
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127 |
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128 | //Für Batterieüberwachung
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129 | ADMUX |= (1<<REFS0); //VCC als Referenzspannung f?r den AD-Wandler
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130 | ADMUX |= (1<<MUX3) | (1<<MUX2) | (1<<MUX1); //1.1V Referenzspannung als Eingang f?r ADC
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131 |
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132 | _delay_ms(10); //warten bis sich die Referenzspannung eingestellt hat
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133 |
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134 | sendByte[0] = 1;//DEVICE; //Modus
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135 | sendByte[1] = 2;//EEPROM_read(0); ; //lese ID aus EEPROM
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136 | sendByte[2] = 5;//EEPROM_read(1);
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137 | sendByte[3] = 6;//EEPROM_read(2);
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138 | sendByte[4] = 7;//EEPROM_read(3);
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139 | sendByte[5] = 8; //CRC
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140 | sendByte[6] = 9; //BAT
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141 | sendByte[7] = 10; //STATUS
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142 | sendByte[8] = 11; //STATUS
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143 | sendByte[19] = 0; //STATUS
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144 | for(uint8_t i=9; i<19; i++){
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145 | sendByte[i] = 0xF1; //DATA i
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146 | }
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147 |
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148 | while(1){
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149 | if(fourBtn == 1){ //wenn einer der 4Taster gedrückt
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150 | if(PINC & (1<<PINC0)){ //Btn 1 gedrückt
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151 | _delay_ms(60);
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152 | PORTC |= (1<<PORTC4);
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153 | _delay_ms(60);
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154 | PORTC &= ~(1<<PORTC4);
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155 |
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156 | sendByte[8] = 0x01;
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157 | char *test = "1234567";
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158 |
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159 | // rs485_putAddr(0x42);
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160 | rs485_puts(test,sizeof(test));
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161 | //uart_putstring("\r\n");
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162 | //uart_putstring(test);
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163 | //_delay_ms(100);
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164 | }
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165 | if(PINC & (1<<PINC1)){ //Btn 2 gedrückt
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166 | PORTC |= (1<<PORTC5);
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167 | _delay_ms(100);
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168 | PORTC &= ~(1<<PORTC5);
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169 |
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170 | // sendByte[8] = 0x02;
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171 |
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172 | rs485_putAddr(0x42);
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173 | rs485_puts(sendByte,sizeof(sendByte));
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174 |
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175 | //_delay_ms(100);
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176 | }
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177 | if(PINC & (1<<PINC2)){ //Btn 3 gedrückt
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178 | PORTD |= (1<<PORTD2);
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179 | _delay_ms(100);
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180 | PORTD &= ~(1<<PORTD2);
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181 |
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182 | // sendByte[8] = 0x03;
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183 |
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184 | rs485_putAddr(0x42);
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185 | rs485_puts(sendByte,sizeof(sendByte));
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186 |
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187 | //_delay_ms(100);
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188 | }
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189 | if(PINC & (1<<PINC3)){ //Btn 4 gedrückt
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190 | PORTD |= (1<<PORTD3);
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191 | _delay_ms(100);
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192 | PORTD &= ~(1<<PORTD3);
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193 |
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194 | //sendByte[8] = 0x04;
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195 |
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196 | rs485_putAddr(0x42);
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197 | rs485_puts(sendByte,sizeof(sendByte));
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198 |
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199 | //_delay_ms(100);
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200 | }
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201 | fourBtn = 0;
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202 | //sendByte[8] = 0x00;
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203 |
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204 | //rs485_putAddr(0x42);
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205 | //rs485_puts(sendByte);
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206 | }
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207 | //Initialisierung
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208 | if(initBtn == 1){
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209 | timer_3s = 0;
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210 | while(PIND & (1<<PIND4)){ //InitBtn gedrückt
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211 | PORTD |= (1<<PORTD5);
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212 | if(timer_3s == 3){ //3sekunden gedrückt
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213 | for(int i=0; i<5; i++){
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214 | PORTD &= ~(1<<PORTD5);
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215 | _delay_ms(100);
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216 | PORTD |= (1<<PORTD5);
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217 | _delay_ms(100);
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218 | }
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219 |
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220 | }
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221 | }
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222 | PORTD &= ~(1<<PORTD5);
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223 | initBtn = 0;
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224 | }
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225 | }
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226 | }
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